Framed Grateful Dead Advertising Postcard

The artwork for this card titles "Three Indian Dudes" was created by renowned poster artist Rick Griffin. The advertised concert took place March 24-26, 1967 at the Avalon Ballroom in San Fransisco. It featured The Grateful Dead, Qujicksilver Messenger Service and John Hammond & the Screaming Nighthawks. Postcard measures approximately

4 1/2" x 6 1/2"